This documentation relates to the latest released version of BMC Discovery.
See the information on this topic for versions 11.2 or 11.1.

A network device object in BMC Discovery represents a switch, a router, a firewall, a SAN switch, and so on. Network devices are discovered using SNMP credentials. A valid credential is required to create a Network Device node.

Note

You should either discover or import network devices. Doing both will result in duplicates where a discovered network device is also imported.

To view a network device

  1. From the main menu, select Explore > Data.
    The Infrastructure page opens.
  2. In the Network & Printers section, click Network Devices.
  3. Select a network device from the list.

The following illustrates a typical example of a discovered network device.

The information fields for a discovered network device object are arranged in the following groups:

  • General Details—General information about the network device such as its name, type, and model. For more information, see General Details.
  • Identity—Information about domain names and IP addresses. For more information, see Identity.
  • Operating System—The Operating system information for this network device. For more information, see Operating System.
  • Infrastructure—Information about the services that the network device provides. For more information, see Infrastructure.
  • Inference—The inference details. For more information, see Inference.

Note

You can also display provenance information by clicking the Show Provenance button. Provenance information is meta-information describing how the other information came to exist. For more information, see Provenance Information.

General details

The following table lists information fields that can be displayed in the General Details group for a network device.

Field name

Details

Name

The name of the network device. If no name is discovered then this is the IP address of the device.

Type

The type of the network device, such as Switch, Router, and so on.

Vendor

The vendor of the network device.

Model

The model name of the network device.

Status

Whether the exact SNMP device has been tested by BMC. This can be either:

  • EXACT—BMC has tested the SNMP queries used to discover this device on a device of exactly this model.
  • SIMILAR—BMC has tested the SNMP queries used to discover this device on a device that is similar, but not identical, to this device; for example, the queries might have been tested on a device from the same family of devices from the same vendor, but not on this exact model.
VirtualYes if the device is virtual.
Containing VMIf the device is virtual, shows and links to the virtual machine containing the device.
Stack

Yes if the device is a stack device. If it is a stack device, stack members are listed under Infrastructure.

Stack MasterYes if the device is a stack master.

Identity

The following table lists information fields that can be displayed in the Identity group for a network device object.

Field name

Details

Serial ID

The serial number of the network device.

System Name

The sysname of the network device.

System Object ID

The SNMP System Object ID of the network device.

Operating System

The following table lists information fields that can be displayed in the Operating System group for a network device object.

Field name

Details

Discovered OS Class

The discovered OS class for the network device (for example, Embedded).

Discovered OS Type

The discovered OS type for the network device (for example, IOS).

Discovered OS Version

The discovered OS version for the network device (for example, 12.1).

Discovered OS Vendor

The vendor of the discovered OS (for example, Cisco).

Infrastructure

The following table lists information fields that can be displayed in the Infrastructure group for a network device object. 

Field name

Details

Network Interfaces

Provides the following details for each network interface:

  • IP Address—The IP address; also a link to the page for that IP address.
  • MAC Address—The MAC address of the network interface,, which is also a link to the page for that network interface.
  • Details—The interface number (eth0, eth1), which is also a link to the page for that network interface. A red x icon is displayed where an interface has some mismatch (speed, duplex, or negotiation) with the network device that it is connected to.
  • Connected To—The network device that the network interface is connected to. A red x icon is displayed where the network device port has some mismatch (speed, duplex, or negotiation) with the interface connected to it.
  • Show details—Click Show Details to reveal more information about the network interfaces. Where a mismatch has been flagged in the Connected To or Details field, the reason is highlighted.
  • Show All nnn—Click Show All nnn to show all of the available networking interfaces.

Network Interfaces of the Stack Member

Applicable only for the stack member devices. Lists and provides links to the Network Interfaces of the stack device that are provided by this stack member.

IPv4 Addresses

The name and IPv4 address of the network device. Click Show Details to see Netmask and Broadcast information.

IPv6 Addresses

The name and IPv6 address of the network device. Click Show Details to see Prefix information.

Network Device in Stack

If the device is a stack device, lists and provides links to the other members of the stack.


Stack of Network Devices

If the device is a stack member, lists and provides link to the stack device.

Fibre Channel Ports

 

Provides the following details for the device's fibre channel ports; for example, for a SAN Switch:

  • Port Name—The name of the fibre channel port; for example, FC Port 0/0.
  • WWPN—The WWPN.
  • Type—The type of fibre channel port; for example, Fabric or Generic Fabric.
  • State—The state of the port; for example, operational.
  • Speed—The port speed.

Inference

The following table lists information fields that can be displayed in the Inference group for a network device object.

Field name

Details

Discovery Access

Lists Discovery Accesses for the network device, grouped by scan date. When an endpoint is scanned, a Discovery Access node is created. The Discovery Access node records information such as the start time, end time, Discovery Run that the scan is part of, and previous Discovery Access to simplify troubleshooting. Clicking a Discovery Access displays the DiscoveryAccess page for that Discovery Access. Where a Discovery Access is about to be deleted as part of DDD aging, a trash can icon is displayed next to the Discovery Access.

CMDB Synchronization

Field name

Details

Last successful CMDB sync

The time and date when the network device was last successfully synchronized into the CMDB.

Last failed CMDB sync

The time and date when the network device was last unsuccessfully synchronized into the CMDB.

CMDB sync duration

The time (in seconds) spent performing the last CMDB synchronization for the network device.

CMDB CI count

The number of CIs corresponding to the network device at the last CMDB synchronization.

CMDB Relationship count

The number of relationships to CIs corresponding to the network device at the last CMDB synchronization.

To view an imported network device

A network device object in BMC Discovery can also represent an imported switch.

Information fields for a typical imported network device

Name

Name of the network device.

Port Details

The following details are provided for each port on the network device: Port, Speed, Duplex, Negotiation, IP Address, Connected Host, and Description. This also highlights any performance affecting mismatches. For more information, see Network device and host mismatch.

Connected Hosts

List of connected hosts. The following details are provided for each connected host: Name, Discovered OS, Hardware Vendor, Virtual (whether the host is a virtual host), Organisational Unit, Location, and Status.

Data Quality Issues

List of any missing fields.

To run network device reports

A number of context-sensitive reports are available for network devices. For more information and examples of these network device-related reports, see Switch Reports.

Network device and host mismatch 

The View Object page of a network device displays attributes and relationships that are already set for that network device. In the Port Details row, it also displays information about the connection settings for the ports on the network device.

The Port Details row is divided into fields. Of these, the Speed, Duplex, and Negotiation fields reflect whether there is a performance affecting mismatch, or whether insufficient information is available to establish whether a mismatch exists.

If a mismatch is detected, or if information is missing so that the correct configuration cannot be confirmed, then the field is filled with a background color.

  • Where a mismatch is detected, the field is filled with a red background.
  • Where there is insufficient information to confirm the correct configuration, the field is filled with a yellow background.
    You can view details of the mismatch or the missing data details by clicking the + symbol in a colored field. The details are displayed in a popup window.

Note

Hyper-V Windows virtual machines (VMs) always report NIC speed as 10 GBps regardless of the actual speed. Consequently, for ports connected to Hyper-V Windows VMs, the network device and switch mismatch field show incorrect results.

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